Flat Commercial Roofs Ridge

When I started out in the roofing trade, I learned fast that flat commercial roofs are not just "flat" in the way a tabletop is flat. They have a slight slope built into the structure, usually about a quarter inch per foot, just enough to let water move. But that subtle pitch creates its own set of challenges. Over the years, I have watched building owners treat their flat roof the same way they treat a sloped residential roof, and that is where trouble starts. A flat roof s